Why Acid pH Increases the Selectivity of the Ozone Bleaching Processes

Ozone: Science and Engineering

Volumn 25, Issue 6, 2003, Pages 523-534

  Roncero, M Blanca ^a   Queral, M A ^a   Colom, José F ^a   Vidal, Teresa ^a  

^a UNIVERSITAT POLITÈCNICA DE CATALUNYA   (Spain)

Author keywords

Chromophore Removal; Crystallinity; Delignification, Cellulose Degradation; Eucalyptus; Kinetics; Ozone; pH; Pulp bleaching; Selectivity; XRD

Indexed keywords

BLEACHING; CELLULOSE; CHROMOPHORES; CRYSTALLINE MATERIALS; DELIGNIFICATION; KRAFT PULP; PH EFFECTS; RATE CONSTANTS; X RAY DIFFRACTION ANALYSIS;

LIGNINS;

OZONE;

EUCALYPTUS;

EID: 0346039316     PISSN: 01919512     EISSN: None     Source Type: Journal    
DOI: 10.1080/01919510390481838     Document Type: Article

References (49)

1. Chirat, C. and Lachenal, D., "Effect of ozone on pulp components application to bleaching of kraft pulps", Holzforschung 48:133-139 (1994).
2. Lindholm, C-A., "Effect of pulp consistency and pH in ozone bleaching. Part 6. Strength properties", Nordic Pulp Pap. Res. J. 1:22-27 (1990).
3. Patt, R., Hammann, M. and Kordsachia, O., "The role of ozone in chemical pulp bleaching", Holzforschung 45:87-92 (1991).
4. Fuhrmann, A., Li, X.-L. and Rautonen, R., "Effects of ECF and TCF bleaching sequences on the properties of softwood kraft pulp", J. Pulp Pap Sci. 23(10):J487-J492 (1997).
5. Roncero, M.B., Colom, J.F. and Vidal, T., "Increasing the Selectivity and Efficiency of the Ozone Bleaching in a TCF Sequence. Part C", Appita J., In press (2003).
6. Roncero, M.B., Colom, J.F. and Vidal, T., "The effect of oxalic acid and sodium borohydride on selectivity of pulp bleaching with ozone", Carbohyd. Polym 51(3):243-254 (2002).
7. Roncero, M.B., Queral, M.A., Colom, J.F. and Vidai, T., "The role of oxalic acid in the ozone bleaching kinetis of an XO-kraft pulp", J. Wood Chem. Technol. 20(2):147-167 (2000).
8. Lachenal, D. and Bokström, M., "Improvement of ozone prebleaching of kraft pulps", J. Pulp Pap. Sci. 12(2):50-53 (1986).
9. Johansson, E.E., Lind, J. and Ljunggren, S., "Aspects of the chemistry of cellulose degradation and the effect of ethylene glycol during ozone delignification of kraft pulps", J. Pulp Pap. Sci. 26(7):239-244 (2002).
10. Lambert, F., "Nouvelles utilisations de l'ozone dans le blanchiment des pâtes à papier chimiques", Doctoral Thesis, Institut National Polytechnique de Grenoble, Grenoble, 1999.
11. Colodette, J.L., Singh, U.P., Ghosh, A.K. and Singh, R.P., "Ozone bleaching research focuses on reducing high cost, poor selectivity", Pulp & Pap. 67(6):139-147 (1993).
12. Pan, G., Chen, C.L., Chang, H.M. and Gratzl, J.S., "Model experiments on the splitting of glycosidic bonds by ozone", International Symposium on Wood and Pulping Chemistry. Stockhohn, 1981, Vol. 2, p. 132-144.
13. Puri, S.C. and Anand, S.M., "Ozonolytic studies of softwood lignin", Cell. Chem. Technol. 20:535-540 (1986).
14. Melo, R., Mariani, S. and Arias, A., "Estudio cinético de la reacción de la lignina de Klason con ozono" Investigación Técnica del Papel 134:791-800 (1997).
15. Zhang, Y., Kang, G., Ni, Y. and Van Heiningen, A., "Kinetics of cellulose degradation during ozone bleaching" J. Pulp Pap. Sci. 26(9):335 (2000).
16. Chapman, A.A., Nguyen, K.L. and Cook, R.A., "A model for the kinetics of ozone bleaching at high consistency", J. Pulp Pap. Sci. 25(7):263-267 (1999).
17. Gandek, T.P., "Rate processes and uniformity in commercial high consistency ozone bleaching", International Pulp Bleaching Conference. Helsinki, 1998, Vol. 1. p. 127-137.
18. Bennington, C.P.J., Zhang, X-Z. and Van Heiningen, A.R.P., "Effect of fibre-width distribution on ozone bleaching", J. Pulp Pap. Sci. 25(4), 124-129 (1999).
19. Cogo, E., Albet, J., Malmary, G., Coste, C. and Moliner, J., "Effect of reaction medium on ozone mass transfer and applications to pulp bleaching", Chem. Eng. J. 73(1):23-28 (1999).
20. Simões, R., "Branqueamento de pastas kraft com ozono: estudos de transferencia de massa e de cinética química", Doctoral Thesis, Universidade da Beira Interior, Covilha, (1997).
21. Roncero, M.B., Colom, J.F. and Vidal, T., "Ozone Bleaching of an Eucalyptus kraft pulp. Increasing the Selectivity. Part B.", Appita J. 55(5):386-391 (2002)
22. Martínez, J.A., Vidal, T., Colom, J.F. and Torres, A.L., "OZP sequence influence of the ozone bleaching on the hydrogen peroxide stage properties", Pulping Conference. San Francisco, 1997, Vol. 1, p. 273.
23. Axegård, P., Moldenius, S. and Olm, L., "Basic chemical kinetic equations are useful for an understanding of pulping processes", Sven. Papperstidn. 5:131-136 (1979).
24. Marcoccia, B., Reeve, D.W. and Goring, D.A.I., "Photo-enhanced oxygen delignification of softwood kraft pulp. Part II: Reaction kinetics", J. Pulp Pap. Sci. 19(3):J97-J101 (1993).
25. Vanchinathan, S. and Krishnagopalan, G.A., "Kraft delignification kinetics based on liquor analysis", Tappi J. 78(3):127-132 (1995).
26. Tessier, P. and Savoie, M., "Chlorine dioxide bleaching kinetics of hardwood kraft pulp", Tappi J. 83(6):1-13 (2000).
27. Eriksson, T. and Gierer, J., "Studies on the ozonation of structural elements in residual kraft lignins", J. Wood Chem. Technol. 5(1):53-84 (1985).
28. Emsley, A.M. and Stevens, G.C., "Kinetics and mechanisms of the low-temperature degradation of cellulose", Cellulose 1:26-56 (1994).
29. Dence, C.W. and Reeve, D.W., Pulp Bleaching. Principles and Practice (Atlanta, TAPPI PRESS, 1996).
30. Browning, B.L., Chapter 24: Crystallinity and accessibility. Wiley: J. Methods of Wood Chemistry (U.S.A., Interscience Publishers, 1967) p. 499-518.
31. Roncero, M.B., Colom, J.F. and Vidal, T., "Cellulose protection during ozone treatments of oxygen delignified Eucalyptus kraft pulp", Carbohy. Polym 51(3):243-254 (2003).
32. th International Symposium on Wood and Pulping Chemistry. Montréal, 1997, Vol. 1, p. M4-1-M4-4.
33. Räsänen, E. and Vuorinen, T., "Formation mechanisms of oxalate and chemical-consuming species in TCF bleaching", International Pulp Bleaching Conference. Helsinki, 1998, Vol. 2, p. 539-542.
34. Ek, M., Gierer, J. and Jansbo, K., "Study on the selectivity of bleaching with oxygen-containing species", Holzforschung 43(6):391-396 (1989).
35. th International Symposium on Wood and Pulping Chemistry. Beijing, 1993, Vol. 2, p. 951-960.
36. Kang, G., Zhang, Y., Ni, Y. and Van Heiningen, A.R.P., "Influence of lignins on the degradation of cellulose during ozone treatment", J. Wood Chem. Technol. 15(4):413-430 (1995).
37. Zhang, Y., Kang, G., Ni, Y. and Van Heiningen, A.R.P., "Degradation of wood polysaccharide model compounds during ozone treatment", J. Pulp Pap. Sc. 23(1):J23-J39 (1997).
38. Gierer, J., "The chemistry of TCF bleaching", The 8th International Symposium on Wood and Pulping Chemistry. Helsinki, 1995, Vol. 1, p. 285-291.
39. Eriksson, T. and Reitberger, T., "Formation of hydroxyl radicals from direct ozone reactions with pulp constituents", The 8th International Symposium on Wood and Pulping Chemistry. Helsinki, 1995, Vol. 2, p. 349-354.
40. Ni, Y., Kan, G.J. and Van Heiningen, A.R.P., "Are hydroxyl radicals responsible for degradation of carbohydrates during ozone bleaching of chemical pulp?", J. Pulp Pap. Sci. 22(2):J53-J57 (1996).
41. Jacobson, B., Lindlad, P-O. and Nilvebrant, N-O., "Lignin reactions affect the attack of ozone on carbohydrates", International Pulp Bleaching Conference. Stockholm, 1991, Vol. 2, p. 45-58.
42. Liebergott, N., Van Lierop, B. and Skothos, A., "A survey of the use of ozone in bleaching pulps, Part 1", Tappi J. 75:145-152 (1992).
43. Biermann, C.J. and Kronis, J.D., "Bleaching chemistry: oxidation potentials of bleaching agents", Progress in Paper Recycling 6(3):65-70 (1997).
44. Reitberger, T., Eriksson, T., Ek, M. and Ihren, G., "On the importance of radical species in TCF-bleaching", The 8th International Symposium on Wood and Pulping Chemistry. Helsinki, 1995, Vol. 1, p. 301-307
45. o) radicals in TCF bleaching processes: a review", Holzforschung 51(1):34-46 (1997).
46. Kishimoto, T. and Nakatsubo, F., "Non-chlorine bleaching of kraft pulp", Holzforschung 52(2):185-190 (1998).
47. Hoigné, J. and Bader, H., "Rate constants of reactions of ozone with organic and inorganic compounds in water - I. Non-dissociating organic compounds", Water Res. 17:173-183 (1983).
48. Nompex, P., Doré, M., De Laat, M., Bawa, M. and Legube, B., "Ozonisation of selected molecules constituting cellular matter", Ozone-Sci. Eng. 13:256-286 (1991).
49. Eriksson, T., Ragnar, M. and Reitberger, T., "Studies on the radical formation in ozone reactions with lignin and carbohydrate model compounds", International Pulp Bleaching Conference. Helsinki, 1998, Vol. 1, p. 119-126.